Island



W. SHARDLOW coRE wmnlNe MACHINE.

APPLICATION FILED NOV.5, 1920.

, Patented 00t.24,1922.

4 SHEkSSHEEI l.

IIIIII Haven/H5015 Patented 0@t..24,192`2.

4 SHEETS-SHE'EI 2.

JWM/Moz f www magia@ w. sHARD'Low.

CORE WINDING M ACHINE'. APPLICATION FILED NOV. 5, 1920.

W. SHARDLOW.

CORE WINDING MACHINE.

APPLICATION FILED IIqv.5, |920.

2 9 1 4, 2 Lb' ,w m m D..

4 SHEETS-SHED 3.

W. SHARDLOW..

CORE WINDING MACHINE.

APPLICATION. FILED NOV.5, 1.920. v l 1,433,242. Patented Oct. 24,1922.

4 SHEETS-SHED 4.

WM/m

y Patented Oct. 24, 1922.

UNITED STATES',

PATENT oel-uca.

WILLIAM SHARDLOW, 0F PAWTUCKET, RHODE ISLAND, ASSIGNOR OF ONE-HALF T0 iWILLIAM MEIKLYEJOHN, OF PAWTUCKET, BJI-IODE ISLAND.

Application tiled November 5, 1920. Serial No. 422,087.

Tov all whom t may concern Be it known that I, IVTLLniM SHAnnLow, a subject of the King of England, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Core-Winding Machines, of which the fol-` lowing is a specification.v

This invention relates to an improved method of and .machine Jfor laying a covering on -a' core, and relates more particularly to the ,winding of a covering of electric inlayers of such covering may be wound Sulating material such as silk or the like, upon a` core such for instance as electric` wire, and the object of this invention is the provision of means whereby a plurality of upon a core. I y

Av further object of this invention is to 'wind different layers of covering'ends or strands of material under different tensions, the outer layer being of the greatest tension and imbedded in the preceding softer layers forming a perfect insulation that will not leak when subjected to a heavy voltage thus binding the whole together and sodoing away with the use `of cement or sizing on Vthe covering material which is'v undesirable.

A still further object :of the invention is toemploy a-oovering thread having a plural- `ity of ends or strands which Iare not twisted together and to lead -all of these ends through the same guide or guides and so lay them simultaneously upon a rwire or core but rin `different layers.` i f 'I 'By thisarrangement of winding, the wire or ,core is so thoroughly insulatedthat il'. will standa much 'higher Avoltagefwi'thout leaking than that insulated by theold meth-` ods. 1 f f The inventionfurther consists in` connecting the lfeed for the c oreand the drive'for the'flyer or windingmechanism so'that at each revolution' of the flyer thecore may if desired, be advanced adistance' equal toone diameter of the end or strand being laid. f

,'The nature and advantages offtliveinvem.

vtion will be betterunderstood when the fol- Y lowing detail description is taken in connection with the accompanying drawings, the` invention residing in the combination-,and arrangement of'partsas claimed.

In the drawings forming 'part `of this specification, like numeralsof reference in dicate similar parts in the several views and wherein.

Figure 1 is a side elevation of my improved core winding machine, showing one operating unit. f v

Figure 2 is a side elevation showing the head-driving unit connected to drive the rotatable winding flyer and the advancing wire or core to operate in direct relation one with the other.

Figure 3 is a top view of this head unit.

Figure 4 is a sectional elevation on line H of Figure 3, looking in the direction of the arrow. i i

Figure 5 is a rear elevation of the traverse mechanism for leading the covered wire properly onto the winding spool.

Figure 6 is an enlarged View of the iyer or winding head.

`Figure f7 is a greatly enlarged diagraL matic view illustrating a thread of three ends or strands being laid in three different superimposed layers upon a wire core, each end forming a distinct layer and a portion of the covering being in section.

Figure 8 is a section on line 8 8 of F igure 7, looking in the direction of the arrow.

Vith reference tothe drawings, 10 desigynates the frame upon which is mounted the operating mechanism.V AOn the upper portion of this frame is supported the plate 11 upon which is mounted as a unit the Hyerhead rotating-mechanism and the wire takeup or; advancing mechanism to operate in unison and at aV given ratio one to thevother.

This flyer head comprises 'essentially a bearing 12 which isfsupported on the plate 11, in which head is iixedby a set screw 18, a hollowbearing spindle lfthrough which the wire or core-26 to `loe Ycovered isadapted to pass.- Upon this spindle is rotatably mounted' the mandrel 14, which is provide gl at oneend with -a grooved driving pulleyv 15 while the other end is threaded as at 16 to receive an adjustabley bearing` nutV l'having a cone-shaped bearing end '19 upon which rests the inwardly turned wall 20 ofthe sleeve 2l.' The surface of this sleeve is slit at intervals as at'22, aboutits circumference and portions-23am raisedy from theV surface thereof for -the'purpose of providing yieldable bear- .Onthe outer end of this mandrel is secured a guidecarrying niember27 which is Vtion 28 having a longitudinally-disposed slot 29, V-shaped in cross section, in Which v the wire or core 26 is adapted to lie and be supported during the Winding or covering operation. This extending portion is provided with a notch haring an edge 3l over which the ends 33 or strands of which the `thread32 is composed are drawn and flattened `just previous to being laid or Wound upon the core. n It `will be notedby this construction that this guiding edge 3l is very close to the surface of the Wire being covered, that is about onehalf the diameter of the coretherefroinsothat the `strand when flattened on-'this edge Will still be fiat when laid upon the Wire. i f

ln guiding the thread from the bobbin125 it is lirst'passed through the `guide eye 311, the saine being supported on the mandrel if thence through the guideeye whichA supported `on the member 27a/nd finally throughor over `a guide 36 Which has a guide portion 37 positioned at an angle of about 200frel`ative to theaxis ofthe Wire.

y by v`so positioning` 'thisguide portion 37 the "ends 33` of the thread are assisted insep-v arating from each other as they are drawn.

over the guide edge and lain upon the core. v By this construction offlyer-head it' will be seen that the sleeve 2l is causedto' rotate with the mandrel 14 as the vthread is :laid

l upon the core and as the thread is vdravvn 50 Whichv 'leadsupvfover the 'flyer pulleyl" from the bobbin itis of course, necessary that the bobbin should rotate slowly relative to themandrel as the thread isi drawn therefrom, and in' order to' provide a tension on the thread and4` prevent lits sleevefroni v rotating too readilyy upon-the mandrel,` l havey provided an adjustablefrietion screwJ 38, the end of which may be set to engage the surface of thev sleeve and so provide therequired o frictional" resistance. From Vthis spinning head `the `Wire' or core-V is passed `around-the tension pulley 39 thence over the guide 40 tobe Wound uponla spool 41j y driving 'the-mechanism p ovverlis` applied to' themam shaft 42 from a motor or other 'source (not 'shown),wand froinfthis shaft a belt 4:3 'is led over the idler pulleys grooved pulley 49 which `isprovidedl'preferably' with a coiled spring wire driving belt for the `purriose of transmitting a Ivery high rate of speedto theflyer-headA iAlsofonth'is jack shaft is mounted a Worm lww-hich transmits motion through the Worm gear 52 to the cross shaft 53 seeFi urea, which cross shaft. transmits motion t rough pinion 54, intermediate gear to the large gear 56 which latter is mounted one short shaft `57 supported ina bracket 6l aiidto this large gear is secured tension pulley 39 for ad vancing theqvire to be wound and alsov u grooved pulley 53 from which is transmitted rotation to a spool shaft pulley 59 through a belt 60.

In order to lay the covered .Wireor core properly uponits `Winding spoolfll, "I have providedga traverse mechanism; best illustrated in `Figures l and, 5. which comprises essentially a laterally movable cross bar 62 having guide .rolls (S37,` 'which rolls are en-y gaged by a `heart-shaped edgefcam` 64- ,to move the bar laterally; n: This cainll ro.` tatably mounted through a; `shaft ywjorm gear 66, andyivormy 67 to whichy is imparte/l a rotary motionfromthe main ,Shaftv/ In the operation 1 ofl the machine the,

78 up over the guide 79 `and through the iyenheadw over thefeed pulley ard to the talreup or'winding spool 41. Y 159 To start the machine it is only @necessary to raisetheshift leve`n80. iWhich-drawvsthe driving belt 13 from the Aloose pulleyllonto the tight pulley 45. vThis causesg.the, lflyerhead to rotate at Ia .very high yvelocity and revolve the threadfabout; thevvvire ,or core, the mechanism is also .caused to advance ,the

core or Wire in a directliproportiontopthe` number of revolutions to theflyer. `In this particular instance the ,i advancing l `of the"v Wire isl approximately', one diameter of one end strand of th'ei thread 'atieach revolution of the f flyer. .Therefore '-Whengirunning at sucha rratio it Will be seen that there ymust be as many layers upon the Wire as there 're ends' or' plies in the coveringthread, `that is,

- or core 26` to be covered is 'lead' from thereel f ilfi thereare tivol endsror plies tothe :thread there: will be two thicknesses 4of covering i on thewire, Qandiif there ,are threeends or plies to the'` thread there will be three thicknessesv of'coveringnon 'thewire r r g y It `is :found in `thef practical fioperation of the machine Athatxin laying the` loose ,ends or strands iuponithe Wire thatthese endswor strands areadraivn throughvorxoveryguides of "such .a shapeiorlcharacterthatA the first revolution lays allrof` the ends sid@` by. side uponv @the Wire@ During the nexty revolutio'nfofzthese ends itheswie CMQ? hS.;,&(lr vanced suliiciently to cause ends Nos. 2 and 3 to Wind over the covering laid by end No. l. Thus it will be seen that Nos. 2 and 3 have nowl an increased tension over No. 1 end y,owing to the fact that the diameter of the Wire has been increased by the coveringlaid by end No. l. The next revolution causes end No. 2 to continue to be wound over covering *laid by end No. l lWhile end No. 3 is `Wound Aover the covering laid by No. 2. Therefore end No.4 3 is drawn around a diameter Awhich is greater than either end No. l or'2 and therefore has a tension greater than either, which causes this last layer to be Wound very tightly upon the Wire and b-e imbedded into .the softer preceding layers rendering the Whole homogeneous or bound together producing the effect of layers laid in a sizing or cef ment that is it cannot be readily univound,

which effect is caused by laying the first layer comparatively loose and eaohfof the succeeding ylayers of covering With a tension lgreater-than those preceding.

It isv found in practice that by so leading these strands or vthreads upon a core that the Wire is so thoroughly covered and insulated that it will stand a greatly increased voltage over similar insulations heretofore.

laid by other methods or processes.y Then again it Will be note/d that all of the strands or ends are led `through asingle set of guides` and all are simultaneously applied to their relative positions to lead their different layers atthe same time upon the Wire or core.

This is found to be an advantage oiving to the Lfact that if the three ends-more or less, Were passed through separate guides .they would be caused to so often break that such an arrangement would be quite impractical, as it is found in practice eX- tremely diflicult to form a thread with ends or strands that do not cross each other and such crossing Would certainly` cause the ends to break down if yled through separate guides. Then again the fibers of the thread ends or plies naturally cling and adhere to each other Which Would cause frequent breaking down of the ends if they were separated and led through diiferent guides. Therefore it will bev seen that by leading all of the ends through the same guide and by separatingthese ends only by the differ" ent tensions Which are applied thereto While laying the different layers upon a core permits these liibers in they different ends or plies to cling to each other, which clinging effect does not in this case break dou/n the ends but simply serves to form a more homogeneous covering.

By my improved method of applying a silk insulating covering to vvire it may be done very rapidly, at the minimum expense and With the minimum attention of the operator, and When so covered the Wire Will stand an yextremely high voltage Withouty leaking.

`The foregoing description is directed solely toivards thefconstruction illustrated, but I desire it to be understood'thatl reserve the privilege of resorting to all the mechanical changes to Whichthe device is susceptible, the invention being defined and limited only by the termsof the appendedl claims. l vi I claim:

l. Tn a core-Windingmachine; means'for leading a plurality of strands from the same vsource together through the same guide and laying them onto a coreso as to provide a plurality of superimposed .covering layers all* in a single operation.

2; In a core-Winding machine, means for leading a plurality of strands from the same source together through the same guide and laying` them onto aico're so as to forma plurality of superimposed covering layers all in a single operation-all of said strands being conducted to the core simultaneously. i o

3. In a core-Winding. machine, means-for leading a plurality of strands from the same source together through they same guide and laying them ontoa core so as to provide a pluralityrof superimposed cov; ering layers all in a single operation, all of said strands beingconducted to the core simultaneously and at different tensions.

a. ln a` machine of the character described, means for leadinga plurality of ends or strands from the same source and laying them upon a core forming a plurality ofv different superimposed layers all in a single' operation, each of said layers vbeing Wound with a different tension.

in a machine of the character described, means for leading a plurality of ends or strands from the same source and laying them upon a core forming a plurality of different superimposed layers all in a single operation, each of said layers being Wound with a different tension, the greatest tension being` applied to the outermost layer.

6. In a core-Winding machine, means for advancing the core, means for revolving the covering thread supply about the core to Wind the layers thereon. means for leading a thread formed of a pluralityl of separate substantially untwisted ends or strands from said supply, means for separating said strands as theyare Wound upon the core whereby each forms a separate layer Wound upon the one preceding.

V 7. In a machine for Winding Wire, means for advancing` the Wire, means for revolving the covering thread supply about the Wire to Wind a plurality of layers thereon, a thread formed of a plurality of separate substan-' tially untvvisted ends or strands, means for layers being Wound simultaneously.

, said supply tothe Winding point, means for ing a plurality `taneously, y y a diierent tension.

separating said strands as they are Wound l upon the'colre, whereby each strand forms a separate layer Wound upon the one preceding,r all `of said layers beingtvound simuland eachlayer being Wound With `9. In a Wire-covering machine, a central tube through Whichthewire to be covered is led7 `a supply of covering thread compris- 'of separate strands rotatably mounted onsaid tube, guides for conducting the thread fromsaidsupply tothe pointot Winding, means for advancing the Wire, and

` a driving unit connected to rotate the Winding meohanismfin time with said Wire-advancing means in such a manner that the.

separate strands Will each-be laid side by side, each forming alayerhwound upon the one preceding.

10; Animprove'd method of covering a core,V which consists in providing substantially untwisted thread with a plurality ot loosestrands or ends and `laying these ends to forma plurality of separate superimposed 'layers of covering'upon the core. y

X11. An improved method of covering Wire which consists in providing `a substantially untwisted thread with a plurality of strands or ends and Winding these ends simultaneously upon the Wire, each end providing a,

separate layer or covering.

12. An improved lmethod of covering Wire which consists in providing a substantially -untwisted thread With a plural-ity of strands or ends, and Winding these'ends simultane-v ously upon the Wire providing a plurality of' superimposed covering layers.

13. An improved method of covering Wire which Consi-sts in providing a substantially untwisted thread With a plurality of strands ofl superimposed covering layers, eachv ot said layers being Wound With a diiereiit ten-.

sion..

`or ends and Winding lthese ends simultaner ously upon the Wire providing a plurality 14. An improved method of covering Wire, i.

which consists in providing a substantially untvvisted thread With a plurality of strands or ends and winding these ends simultaneously upon the Wire providing a `plurality of superimposed covering layers, each suci ceeding layer. being Wound tighter than the one preceding. v Y

15. An improved method of covering Wire, which consists inproviding a thread With a plurality covering of one strand at each revolution of the' Winder causing thel strands to wind iny layers of strands or ends, rotating the thread about the Wireto Wind` it f thereon7 advancing the Wire the diameter` one upon the other and finally reeling the I finished product. f n

In testimonywhereof Iailix m signature. WILLIAM ".SHADLO W. 

